First Business Financial Services has turned what was already a credible Wisconsin-based business bank into one of the more interesting small-cap specialty lenders in the Midwest, and the second quarter of 2026 made the case more clearly than at any point in the past several years. The company earned $1.84 per diluted share on net income of $15.6 million, returned 16.9 percent on average tangible common equity, expanded its net interest margin to 3.78 percent from 3.56 percent in the linked quarter, and grew core deposits 11.7 percent annualized, all while shrinking non-performing assets and walking away from the part of its SBA business that no longer fit. With the stock at $70.22, a trailing P/E near 10.7x, a price-to-tangible book below 1.6x, and a 1.94 percent dividend yield, the market is paying for a high-quality but slow-growing regional bank, not for a specialty franchise that has just delivered a 14.9 percent year-to-date lift in pre-tax, pre-provision earnings.
The most important pieces of evidence are the simultaneous expansion in net interest margin and acceleration in core deposit growth, the durability of fee income from private wealth, and a balance sheet that is now capitalized for a 12.21 percent total risk-based ratio with 32 percent of deposits uninsured but only $1.15 billion of uninsured balances net of pledged collateral, well covered by $1.5 billion of readily available liquidity. The biggest counterargument is that the headline earnings included a $1.5 million state deferred tax valuation allowance release worth roughly $0.14 per share, that loan growth at 10.3 percent year over year is sound but not exceptional, and that the company's geographic concentration in Wisconsin, Kansas, and Missouri leaves it exposed to a regional downturn that the broader regional bank cohort is not. With the stock at 1.53x book and 10.7x trailing earnings, valuation is supportive but does not require a multiple expansion to deliver a reasonable forward return, so the case rests on whether the next twelve months replicate the second quarter's combination of margin, fee, and credit quality.
A reasonable base case for the next four quarters assumes net interest margin holding within the 3.60 to 3.65 percent target, loan and core deposit growth in the high single digits, and pre-tax, pre-provision earnings growing in the low double digits. Under those assumptions, EPS lands around $6.40 to $6.50 for the full year, and a 10 to 11x multiple on that figure would be consistent with the current price. A more optimistic case, in which NIM holds above 3.70 percent and private wealth AUM continues to grow above 15 percent, would push EPS closer to $7.00 and a 12x multiple, which would imply roughly $84 per share, or about 20 percent upside. A more cautious case, in which the SBA exit trims fee income by more than expected and CRE credit costs rise, would push EPS toward $6.00 and a 9 to 10x multiple, implying $54 to $60 per share. The asymmetry of those scenarios is one of the more attractive features of the current setup.